Add back pht()s and tsprintf()s to arg set-config
Add back pht()s and tsprintf()s to arg set-config

Summary: See D17357

Test Plan: invoke and still see output in English?

Reviewers: #blessed_reviewers, joshuaspence, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D17362

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